Alright! Step 1.
Relax, you're O.K. -- even if you get into trouble for putting it on a computer with which you did NOT have 100% permission to use. This program has wonderful sound research to go with it, you're O.K.

Step 2. You will have to reinstall f.lux whether you want to or not, that's just the way it is. F.lux is probably still running -- if you reinstall, f.lux will be restarted from default, so that should clear out any changes you have made.If you'd like to manually stop the process, hold CTRL SHIFT END. This will open task manager faster. Click "Processes" Find "flux.exe" and end the process.

Step 3, if you would like to try again, do so, and make sure you wait until sundown for the settings to properly take effect.

If the effect is too strong at the moment, push the night slider to the right, and try 4700K at first. I feel that it's a great starting point.

Let me know how this goes!

Where are you getting the impression that he put this on a computer that he doesn't have 100% permission to use? I'm not seeing it.

Anyway, he already reinstalled it. The problem is, the color temperature is still very warm. Now granted, we don't know if it's still installed or not, but he just wants to get rid of it. He doesn't want it to be installed at all. Uninstalling it leaves the color temperature very warm, and that's the problem that needs to be fixed.

Normally, uninstalling f.lux exits automatically (and completely), so this is strange. Either way, ending it in Task Manager might be necessary. If uninstalling it and then verifying in the Task Manager that it's really not running doesn't fix the problem, then we might need to make a quick change in the Registry. I will help with that if it comes to it.

So fidla, if putting both color sliders all the way to the right just before uninstalling doesn't work, then here's what you should try:

Open Task Manager. Here are some different ways to get it open:

-- Press Ctrl+Shift+End. Upon pressing the End key, Task Manager will open.

-- Right-click the Taskbar and choose "Start Task Manager". If you're not sure what the Taskbar is, it's the bar along the entire bottom of your screen. You'd right-click a blank spot on it.

-- Open the Start Menu (you can press the Windows Key on your keyboard) and type task manager and press Enter.

Regardless of how you get Task Manager open, once it's open, switch to the "Processes" tab and look for "flux.exe *32". End this process. Here are some ways to do that:

-- Left-click "flux.exe *32" and then click "End Process" on the bottom-right corner of the Task Manager window Then, click "End process" on the little window that pops up.

Regardless of the way you end flux.exe, uninstall flux afterward using the Programs and Features control panel. Restart your computer to see if this worked. If it still goes back to being yellow, then I will have another thing that you can try.

[quote]Where are you getting the impression that he put this on a computer that he doesn't have 100% permission to use? I'm not seeing it.

Because I've done that before, and well, just to lighten up the situation.
This error happens a LOT. I've seen it countless times, and what usually fixes it is just reinstalling. Then if you want to, uninstall. I really wonder what causes it so often, I think it's certain hardware that's the blame.

Hello there (and thanks for checking the FAQ first - sorry you did not find an answer).

So - one thing I've seen with some older video drivers is that they can be confused when there's not a default color profile in your system. You could try following the steps here to get a profile installed and then your drivers would have something to use besides the f.lux profile:

Hello there (and thanks for checking the FAQ first - sorry you did not find an answer).

So - one thing I've seen with some older video drivers is that they can be confused when there's not a default color profile in your system. You could try following the steps here to get a profile installed and then your drivers would have something to use besides the f.lux profile:

Not only could this fix the issue, but your overall color output could be improved in ways that might surprise you.

My experience: I have a Samsung 2253BW monitor and its color output is dominated by blue. That's just the way it is, but I didn't know about it until 2 weeks ago. A new internet friend of mine somehow caused me to actually become interested in calibrating my monitor properly. I could have purchased a device that would do it automatically, but instead I downloaded a pre-calibrated profile for my specific monitor (for free!), which is the 2253BW. When I went to select the profile, I found that the default was precisely as Lorna said: no color profile was selected at all. I even tried selecting the color profile that came with my monitor, but lol, it was hardly any different. I couldn't really detect a difference except for maybe a slightly darker gamma.

Anyway, after selecting the downloaded color profile, the results were actually pretty amazing. As you can imagine, the world on my computer became much more colorful. I wish it were possible to show Before & After screenshots. Most people would just use a camera, but I don't have that luxury. Let's just say that it's like seeing everything for the first time. Even today, 2 weeks later, I'm still looking at things and shaking my head. lol I have had this monitor since April of 2008! So yeah, this is quite a big change for me, and i love it.

The point is, even if you still don't want to keep using f.lux, calibrating your monitor could surprise you by how much better everything can look - at least in terms of color.